BE502519A - - Google Patents
Info
- Publication number
- BE502519A BE502519A BE502519DA BE502519A BE 502519 A BE502519 A BE 502519A BE 502519D A BE502519D A BE 502519DA BE 502519 A BE502519 A BE 502519A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/42—Systems providing special services or facilities to subscribers
- H04M3/54—Arrangements for diverting calls for one subscriber to another predetermined subscriber
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Structure Of Telephone Exchanges (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DK315471X | 1950-04-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE502519A true BE502519A (nl) |
Family
ID=8150492
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE502519D BE502519A (nl) | 1950-04-14 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US2686842A (nl) |
| BE (1) | BE502519A (nl) |
| CH (1) | CH315471A (nl) |
| DE (1) | DE874468C (nl) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2338997A (en) * | 1942-08-04 | 1944-01-11 | Bell Telephone Labor Inc | Communication system |
| US2524774A (en) * | 1946-02-04 | 1950-10-10 | Int Standard Electric Corp | Telephone system |
-
0
- BE BE502519D patent/BE502519A/xx unknown
-
1951
- 1951-04-12 DE DEJ4026A patent/DE874468C/de not_active Expired
- 1951-04-13 CH CH315471D patent/CH315471A/fr unknown
- 1951-04-13 US US220813A patent/US2686842A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| US2686842A (en) | 1954-08-17 |
| DE874468C (de) | 1953-04-23 |
| CH315471A (fr) | 1956-08-15 |